Truck for railway vehicles



Jan. 1, i929.

H. C. PRIEBE 'ravcx FOR RAILWAY VEHICLES Filed sept. so. 1927 fg e Patented Jan. l, 1929.

Ultilfl SIAIS HERMAN C. PRIEBE, 0F IBIUEr ISLAND, ILLINOIS.

TRUCK FOR RAILWAY VEHICLES.

Application filed September 30, 1927.

My invention relates to trucks for railway vehicles and has for one object the reinforcement of the lower arch bars of the side frames of the trucks, and another' object the reinforcement of the riveting of arch bars and bolster columns.

By means of my invention, I am enabled to employ parts of truck side frames of a certain type when the use of such frames is discontinued and the frames are taken apart for salvage. In one embodiment of the invention, bothv the lower arch bar and reinforcing strap are constructed from the lower arch bar and underlying strap of such dismantled truck frame, the strap serving, in the newly constructed frame, to reinforce the lower bar which would otherwise have been unadaptable to new use because of perforations therein. In another embodiment of the invention, frames of the type whose underlying straps are employed for the purpose stated may, themselves, be strengthened by such bars taken from similar frames that are dismantled. f

I will explain my invention more fully by reference to the accompanying drawing in which Fig. 1 is a side view with parts shown in elevation and parts shown in section of a truck whose frame is constructed in ac cordance with the preferred embodiment of the invention; Fig. 2 is a bottom view of the struc-ture shown in Fig. 1; Fig. 3 is a side view of another embodiment of the invention; and Fig. Ll is a sectional View on line` converging toward the ends of the side frame and whose ends are brought together above the journal boxes. These journal boxes are assembledvwith the arch bars by means of the U bolts 8 whose side portions pass upwardly through the journal boxes and whose base portions are clamped against the bottoms of the journal boxes by means of the nuts 9 screwed upon the ends of the U bolts. The inner upright sides of said U bolts pass through the tie links 7 and engage the outer ends of these links. The inner ends of these Serial No. 223,048.

links are received within recesses 10 that are formed inthe bottom side of the yoke 5 near fthe middle of theyoke.A rIhe tie linksthus serve to prevent the bottoms of the journal boxes from spreading apart,

The upper ends of the bolster columns 3 and e' are reduced to form pins 11 and seats at the base ends of these pins. These pins enter openings formed 1n the upper arch bar l. this arch bar engaging the aforesaid seats.

rIhe pins have t-ieir upper or outer ends eX- panded into heads that lap the arch bar 1, as illustrated in Fig. 1. The bolster columns have wing portions 12 ektending therefrom toward the ends of the side frame, rivets 13 passing through these wing portions and the arch bar 1 further to assure the assembly of this arch bar with the bolster columns.

A pin 14 is driven into one arc bar end at each end of the side frame, preferably the lower arch bar end, the other arch bar ends having holes in which said pins are received in the process of assembling theends of the arch bars.

The truck illustrated in Fig. 3 is inclusive of the upper arch bar 1 and the lower arch bar 2, these arch bars converging toward the tops of the journalboXes'G and being secured thereto by bolts 8 which pass through the ends of the arch bars and through the underlying strap 15 constituting a tension member. In the structure of Fig. 3 the bolster columns 3', 4:', are separately formed, thetie bolts 16 passing through the columns 3, l, and alsothrough both arch bars and the tensioning strap, nuts 17 serving to tighten said bolts 16.

In forming the structure of Figs. 1 and 2,

the arch bar 2 is formed from the arch bar 2 of a dismantled frame of the type illustrated in Fig. 3. Perforations 18 are left in the arch bar 2 in the structure of Figs, 1 and 2, these having been the perforations through which the bolts 16 of the dismantled frame passed. These perforations are, obviously, distributed along the bar 2 and are on opporsite sides of and equidistant from the center of this bar. To overcome the weakness that would be due to `these perforations in the structure of Figs. 1 and 2, I employ a reinforcing strap 19 which underlies the bar y2 and extends toward both ends thereof beyond said perforations, said strap being secured to the bar 2 by rivets 20, 21, 22 and 23, at the ends of the strap. The strap 19 may be conveniently formed from one half of the strap of the structure of Fig. 3 in which event the rivet passes through the same bolt hole in the strap which receives the outer bolt 8 in the structure of Fig. 3. The perforation 2li previously receivedone of the bolts 8. The perforation Q5 in strap 19 previously received one oi' the bolts 16. The presence of the perforations 24 and 25 in they strap 19 does not unduly impair the effectiveness of this strap. In the structruev of Y 3 the lower arch bar 2 is supplied with a reinforcing strap 19 which may be formed from one halt of the strap 15 of a discarded side frame of the general type illustrated in Fig. 3, whereby side frames of this general type are further strengthened with the aid of the underlying straps 15 ot discarded frames.

rIn the preferred embodiment o t the invention, sleeves 2G surround the wings 12 ot' the bolster columns and the adjacent arch bar, the arch bar 1 in the embodiment o1E the invention shown in Fig. 1. The outermost rivets 13 are )assed through said sleeves and the portions ot said column wings and arch bar surrounded by said sleeves. These sleeves serve to relieve the tension on all rivets 13 lengthwise thereof, said sleeves being tightly driven into place. This is of value since the heads ot said rivets would otherwise frequently snap oii" in cold weather. The value or the rivets in resisting shearing effect upon the pins 11 is fully retained. Y

Changes may be made without departing from the invention. j

Having thus vdescribed my invention, I claim:

1. A truck for railway vehicles including journal boxes; upper and lower archbars assembled with the journal boxes and which converge toward the tops of said boxes, the lower arch bar having perforations therein along the same and on each side of its center; and a reinforcing strap secured to the mid portion of the lower arch bar at places between said perforations and `the ends of thisI arcl'i bar, said strap being on the bottom side 'of this bar.`

2. A truck for railway vehicles including journal. boxes; upper and lower arch bars assembled with the journal boxes and which converge toward the tops of said boxes, the lower arch bar having perforations therein along the same and on cach side of its center; and a reinforcing strap riveted to the mid portion of the lower arch bar at places between said pcrtorations andthe ends ot this arch bar, said strap being onl the bottom side of this bar.

A truck for railway vehicles including journal boxes; upper and lower aren ars assembled with the journal boxes and which converge toward the tops of said boxes; and a reinforcing strap secured to the mid portion of the lower arch bar, said strap being on the bottom side of this bar.

L1-. A truck for railway vehicles including journal boxes; upper and lower arch bars assembled with the journal boxes and which converge toward the tops of said boxes; and a reini'orcing strap riveted to the mid portion of the lower arch bar, said strap being on the bottom side of this bar.

A truck side frame having lower and upper arch bars; a bolster column between said arch bars and formed Awith'wings'extending along one of said arch bars; sleeves driven tightly over said wings and the arch bar adjacent said wings; and rivets passed through said sleeves and the parts surrounded by said sleeves.

G. A truck side frame having lower and upper archbars; a bolster column between said arch bars and formed with wings extending along one of said arch bars; sleeves driven tightly over said wings and the arch bar adjacent said wings; andvrivets passed through said wings and the arch bar adjacent said wings.

In witness whereof, I hereunto subscribe Illy DLHIG.

HERMAN C. PREBE. 

